nextapp.echo.app.event.ListDataEvent Maven / Gradle / Ivy
/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo.app.event;
import java.util.EventObject;
/**
* An event describing an update to items in a list.
*
* @see nextapp.echo.app.event.ListDataListener
*/
public class ListDataEvent extends EventObject {
/** Serial Version UID. */
private static final long serialVersionUID = 20070101L;
/**
* An event type indicating items in the list were changed.
*/
public static final int CONTENTS_CHANGED = 0;
/**
* An event type indicating items were added to the list.
*/
public static final int INTERVAL_ADDED = 1;
/**
* An event type indicating items were removed from the list.
*/
public static final int INTERVAL_REMOVED = 2;
private int index0;
private int index1;
private int type;
/**
* Creates a new ListDataEvent
*
* @param source the object that generated the event
* @param type the type of event, one of the following values:
*
* - CONTENTS_CHANGED - Indicates a change was made to one or more
* items in the list.
* - INTERVAL_ADDED - Indicates one or more items were added to
* the list.
* - INTERVAL_REMOVED - Indicates one or more items were removed
* from the list.
*
* @param index0 the first index of the interval affected by the list change
* @param index1 the last index of the interval affected by the list change
*
*/
public ListDataEvent(Object source, int type, int index0, int index1) {
super(source);
this.type = type;
this.index0 = index0;
this.index1 = index1;
}
/**
* Returns the first index of the interval affected by the list change.
*
* @return the first index
*/
public int getIndex0() {
return index0;
}
/**
* Returns the last index of the interval affected by the list change.
*
* @return the last index
*/
public int getIndex1() {
return index1;
}
/**
* Returns the type of the event
*
* @return the type of event, one of the following values:
*
* - CONTENTS_CHANGED - Indicates a change was made to one or more
* items in the list.
* - INTERVAL_ADDED - Indicates one or more items were added to
* the list.
* - INTERVAL_REMOVED - Indicates one or more items were removed
* from the list.
*
*/
public int getType() {
return type;
}
}